How do airplanes stay in the air?

Answers

Answer 1

Answer:A plane's engines are designed to move it forward at high speed. That makes air flow rapidly over the wings, which throw the air down toward the ground, generating an upward force called lift that overcomes the plane's weight and holds it in the sky. ... The wings force the air downward and that pushes the plane upward.

Answer 2

Explanation:

A plane's engines are designed to move it forward at high speed. That makes air flow rapidly over the wings, which throw the air down toward the ground, generating an upward force called lift that overcomes the plane's weight and holds it in the sky. ... The wings force the air downward and that pushes the plane upward


Related Questions

What is the correct answer?

Answers

with unbalanced forces

Simple organic molecules combine to make larger molecules. Which statement best describes the disruption of the bond between two carbohydrate monomers? (3 points) Dehydration synthesis will remove water molecules, forcing the bond to break. Energy will be stored in the bond between monomers through hydrolysis. The bond in the complex carbohydrate will be broken due to enzyme activity. The helium and hydrogen atoms in the backbone of the sugar will be broken.

Answers

Answer:

The correct answer is - The bond in the complex carbohydrate will be broken due to enzyme activity

Explanation:

Carbohydrates are macromolecules formed by the combined simple monomer subunits to make a larger subunit or chain of molecules. Dehydration synthesis is the process required for the build-up of these larger molecules and for this they require energy.

The hydrolysis reaction is used to break the hydrogen bond of these monomer backbones by the addition of water which releases energy. Complex carbohydrates are digested or the bonds present in between their monomers are broken down due to the activity of the series of the enzymatic reaction.

Answer: The bond in the complex carbohydrate will be broken due to enzyme activity.

Where can the following organelle be found:
Vacuole
Answer : it can be found it animals cells and plant cells
(I did the test guys )

Answers

vaculoe you already know the answer ??

write a food chain from this food wed with six tropic levels

Answers

Answer:

Pri mary Prod ucers

Prim ary Con sumers

Secondary Consum ers

Te rtiary Consumers

Ap ex Pred ators

Trophic casc ade?

(i put lines because it says that i'm using "inappropriate" words.)

An allele that occurs in the gametes of an organism will most likely be transferred to which of the following?
O The offspring of the organism
O The mating partner of the organism
The siblings of the organism
O The other organisms living nearby


NEED HELP ASAP !!!! Thank you

Answers

Answer:

The offspring of the organism

Explanation:

The alleles of two mature gametes swap and mix during the reproduction process. Allowing for expression of certain more dominant or recessive traits in an offspring. An offspring contains a mix of allele say Aa from aa, AA parents alleles.

how far is each planet from the sun.................

Answers

Answer:

1. Mercury: 31.197 million mi

2. Venus: 66.81 million mi

3. Earth: 92.96 million mi

4. Mars: 141.6 million mi

5. Jupiter: 483.8 million mi

6. Saturn: 890.8 million mi

7. Uranus: 1.784 billion mi

8. Neptune: 2.793 billion mi

Explanation:

Hope this helps ;}

Mercury is 57,910,000 km (0.387 AU) from the sun

Venus is 108,200,000 km (0.723 AU) from the sun

Earth is 149,600,000 km (1.000 AU) from the sun

Mars is 227,940,000 km (1.524 AU) from the sun

Jupiter 778,330,000 km (5.203 AU)


Saturn 1,424,600,000 km (9.523 AU)

Uranus 2,873,550,000 km (19.208 AU) 51,118 km

Neptune 4,501,000,000 km (30.087 AU)

Nitrogenous bases are located on both stands of the DNA double helix. What is the significance of the nitrogenous bases?

Answers

Answer:

the nitrogenous bases form hydrogen bonds between opposing DNA strands to form the rungs of the Twisted ladder or double helix of DNA or biological catalysts that is found in the nucleotides.

Explanation:

hope this helps :]

Which is a symbol that represents SI units for temperature?
°C
g
Ооос
L

Answers

degrees celcius because that is a form of heat the others are mass
Degree celcius from the options. But si unit is kelvin

So this is a simple yes or no question
In photosynthesis is the water broken down by hydrogen molecules yes or no

Answers

yes i think so, but not sure
Water splitting is the chemical reaction in which water is broken down into oxygen and hydrogen. It says it gets broken down into hydrogen so no i don’t think it is broken down BY hydrogen.

can someone help me asapp

Answers

Answer:

the answer is b it's not the center of the universe

Explanation:

its not

How many neutrons does Phosphorus have? Use the diagram below to help find the amount:

Answers

Answer:

16

Explanation:

The human genome project was produced an area of science known as bioinformatics. how is this helpful in sequencing DNA?

Answers

Bioinformatics is a subdiscipline of biology/computer science concerned with the acquisition, storage, analysis, and dissemination of biological data. This helps organize and determine nucleotides of a given DNA molecule from known data about biological data through computer sustems.

** The Human Genome Project increased speed of DNA sequencing and lowered the cost. Basically made it more efficent.

Check out Bioinformatics lectures and websites! You will gain a better understanding of how this is helpful for sequencing DNA.

which of the following is not a fluid? air, water, carbon dioxide, or wood

Answers

Answer:

Wood

Explanation:

*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^

Wood is not a fluid. It is a solid.

*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^

#teamtrees #WAP (Water And Plant)

Answer:

wood

Explanation:

its common scene luv

Need help Plz!!!!

Choose ONE of the three writing assignments below and write a 4-6 sentence letter. Use science vocabulary, full sentences, proper grammar and details that show your understanding.


An 8th grader writing to a scientist telling them what they know about bacteria and asking more questions.


A harmful bacteria writing to a good bacteria telling them how they hurt humans and why they’re cooler.


A teacher writing to a confused student about the differences between bacteria and other life forms.

Answers

A teacher writing to a confused student.

bacteria are microscopic (very tiny) organisms that are unicellular (made up of a single cell). One fundamental difference is that bacterial cells lack intracellular organelles, such as mitochondria, chloroplasts, and a nucleus, which are present in both animal cells and plant cells.

How has the environment of this location changed since Basilosaurus lived?

Answers

The fossil shown in this photo is of a Basilosaurus. Its skeletal features suggest that it spent its entire life swimming in the ocean. Look at the environment the fossil was found in. Consider that Basilosaurus lived in the ocean

hurry plz help for test due in 5 min

Answers

Answer:

Hello! Brainly is a website used for help on school but you should not use brainly for exams, test, or quizes!

                                                                                    BrainlyMiddleSchool

After examining the picture, which of the following formations is most likely the youngest?

bed B
bed D
d-i-k-e M
bed C

Answers

Answer: The real answer is Bed D

bed d is wrong! the answer is dk M

what is the function of the Diaphragm

Answers

Answer: It is a large, dome-shaped muscle that contracts rhythmically and continually, and most of the time, involuntarily. Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges. This contraction creates a vacuum, which pulls air into the lungs. The diaphragm, located below the lungs, is the major muscle of respiration. It is a large, dome-shaped muscle that contracts rhythmically and continually, and most of the time, involuntarily. Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges.

Explanation:

Answer:

The diaphragm, located below the lungs, is the major muscle of respiration. It is a large, dome shaped muscle that contracts rhythmically and continually, and most of the time, involuntarily. Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges.

If an animal cell is placed in a hypotonic solution, it will undergo.
O endocytosis
O exocytosis
O cytolysis
O plasmolysis

Answers

Explanation:

Plasmolysis is the process in which cells lose water in a hypertonic solution. The reverse process, deplasmolysis or cytolysis, can occur if the cell

Answer:

Hello Hanji please send phone number watsapp

How many moles of arsenic are in 1.204 x 1024 atoms of arsenic?

Answers

What is the mass in grams of 1.00×1023 radon atoms? Use 6.022×1023mol−1 for Avogadro's number. Your answer should have three significant figures. 36.9 grams.

Answer: 2.0 moles

Explanation:

Pea plant clones are given different amounts of water for a three-week period. First pea plant receives 400ml. Second pea plant receives 200ml. Third pea plant receives 100ml. Fourth pea plant does not receive any extra water; the plant only receives natural ways of receiving water. The height of the pea plants is recorded daily. What is the independent variable?


A) the different amounts of water

B) the heights of the pea plant

C) the pea plants

D) the natural ways of receiving water

Answers

Answer: The independent variable is the different amount of water. The correct option is A.

Explanation:

A variable can represent age, a person, or an entity that can be measured. In statistics, it is simply defined as an attribute of an object to be investigated. There are different types of variables these includes:

--> Dependent variable and

--> Independent variable.

Dependent variables are simply the variables that are affected by the changes that occurs in the experiment. From the experiment they should include:

--> the height of the plant,

--> the size of the plant,

--> the number of leaves

---> if the plant survived or not (dead).

Independent variable are the variables that are changed in the experiment. A good example from the pea plant experiment is WATER. It is the aspect that is used to alter the dependent variable which is the height of the pea plant. I hope this helps, thanks!

PLZ HELP IM TIMED
How does the graphic in the section "One Atmosphere, Many Layers" develop a coherent understanding of Earth's atmosphere?

A
It illustrates where each layer of the atmosphere is located.
B
It outlines what each layer of the atmosphere is made up of.
C
It helps the reader to see that weather happens in different layers of the atmosphere.
D
It helps the reader to understand which layers of the atmosphere are most important.

Answers

Answer:

D

Explanation:

After she has viewed the cells, she wants to produce a scientific drawing of them.
Her teacher has told her to use smooth lines to draw the structures she can see.
Give two other ways in which she can make sure she produces an accurate and useful drawing.

Answers

make a large clear drawing, include magnification used, use a ruler, when labelling write horizontally forming a vertical list. hope this helps :)

After she has viewed the cells, she wants to produce a scientific drawing of them.The other ways in which she can make sure she produces an accurate and useful drawing is make a large clear drawing, include magnification used, use a ruler, when labeling write horizontally forming a vertical list.

What is scientific experiment?

An experiment has been defined as process that is designed to diagnose the hypothesis which has the portion of the scientific method or procedure.

Scientific experiment has done by testing the particular medicine on an animal and by observing the impact of medicine on the animal as well as the reaction of the animal.

There are mainly three types of scientific experiments and these are the experimental which has been consist of the major level of scientific experimentation. The second type has been known as Quasi- experimental and third type has been known non- experimental study or research.

Therefore, After she has viewed the cells, she wants to produce a scientific drawing of them.The other ways in which she can make sure she produces an accurate and useful drawing is make a large clear drawing, include magnification used, use a ruler, when labeling write horizontally forming a vertical list.

Learn more about scientific experiment here:

https://brainly.com/question/2449529

#SPJ5

What three basic things must the human population have in order to survive?
O A. Shelter, money, and waste disposal
O B. Food, shelter, and transport
O C. Food, shelter, and water
O D. Electricity, water, and farmland
Please help

Answers

Answer:

C is the correct answer

Answer:

Food, water and shelter are the three basic things the human population must have in order to survive.

Explanation:



The atomic number of carbon is six, which means that a carbon atom has six protons. Carbon has three

naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. Which of these statements are true

about carbon and its isotopes? Select all that apply.

A. All carbon atoms have six neutrons.

B. All carbon atoms have six protons and six electrons.

?

C. Atoms of all carbon isotopes have either more than 6 electrons or fewer than 6 electrons.

D. Atoms of some naturally occurring carbon isotopes may have six neutrons.

E. Atoms of some naturally occurring carbon isotopes may have twelve neutrons.

Feed

Answers

Answer:

B. All carbon atoms have six protons and six electrons.

D. Atoms of some naturally occurring carbon isotopes may have six neutrons

Explanation:

Isotopes are atoms of the same elements having same atomic number but different atomic masses.

Atomic number is the number of protons (or electron number in neutral atoms) present in the atomic nucleus of the atom.

Atomic mass number is the sum of protons and neutrons present in the nucleus of the atom.

Considering the options above from the above definitions:

A. All carbon atoms have six neutrons is false because carbon-12, carbon-13 and carbon-14 has 6, 7 and 8 neutrons respectively.

B. All carbon atoms have six protons and six electrons is true because the atomic number of carbon is 12.

C. Atoms of all carbon isotopes have either more than 6 electrons or fewer than 6 electrons is false because atoms of all carbon isotopes have six electrons.

D. Atoms of some naturally occurring carbon isotopes may have six neutrons is true because atoms of carbon-12 have six neutrons.

E. Atoms of some naturally occurring carbon isotopes may have twelve neutrons is false because none of carbon-12, carbon-13 or carbon-14 have twelve neutrons.

Answer:

the answer is b and d

Explanation:

cellular activity across a cell membrane

Answers

Answer:

The plasma membrane is a selectively permeable barrier between the cell and the extracellular environment. Transport of such molecules and ions across all cellular membranes is mediated by transport proteins associated with the underlying bilayer.

Explanation:

Imagine you are a world famous primatologist, a scientist who studies primates. An
unidentified, complete fossil skeleton arrives at your lab. You suspect that it's a primate
fossil. What observations would you make to determine if your suspicions are accurate?

Answers

The first thing I would do is compare it to another primate skeleton and contrast the two skeletons. Next I would try to brainstorm whether or not it’s a cousin of let’s say an orangutan or gorilla.
(This is all I could come up with sorry)

When will a seed begin to germinate?

A. When it has sunlight and water

B. When it has energy

C. When it has water

D. When it has sunlight

Answers

Answer:

A

Explanation:

When it has sunlight and water

Answer:

A. When it has sunlight and water

Explanation:

4. Why are coral reefs only found in tropical water? *
(1 Point)
They need cold water with little sun
They need deep water and humid temperatures
They require shallow waters where the sun can reach them

Answers

They require shallow waters where the sun can reach them!

Answer:

They require shallow water where the sun can reach them.

Atkins, Southbeach, and Keto are just a few diets that claim to help people lose weight and live healthier. If an individual wants to have quick
energy and build muscle what two biomolecules will help them achieve their goal.

PLEASE HURRY!! ITS A TIMED TEST!!!!

Answers

Answer: The answer is D

Explanation:

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Which of these people would be a natural-born US citizen? Select three options.__ Ivan was born in Russia, but his mother was born in the United States.__ Ethans parents were both born in Israel, but he was born in the United States.__ Alice was born in France, but all of her grandparents were US citizens.__ Pedros parents were both born in Spain, but he was born in the US territory of Puerto Rico.__ Sebastian was born in Greece, but he moved to the US with his parents before he was two. What happens to supply when the price is set $1.00 above equilibrium? Does anyone know this ? Write a rough draft and a normal story about a haunted house with Spooky,creaky,scary,creepy,cursed,dark, black,loud,crackly,tilted,lots of roomand Ghosts,zombies,vampire,bats,ghouls,moving furniture,mice,spirits,skeleton,pictures,spiders,jars of insidesplz it is due by 11amOnly a haunted house no people like Mia or something OK thx Effective Annual Rate A loan is offered with monthly payments and a 8 percent APR. What's the loan's effective annual rate (EAR)? Les had $32.00 when he went to the city Market to buy some fresh fruits and vegetables. When he left, he had $23.05. How much money did he spend on food? Plz help! will give brainliest and points! What was the goal of President Truman's policy of containment?A. to liberate as many Communist countries as possibleB. to prevent Communism from spreading in the United StatesC. to construct a wall to hold Communism within its 1947 bordersD. to stop Communism from spreading to non-Communist countries I NEED HELP!Who wrote the Virginia Statute for Religious Freedom? slope from two points What is the y-intercept of f(x)= (3/5)^x? which good was the best to sell and why Why do people pretend they have depression, Depression is not something to joke about round 6.24159 to the nearest hundredths Quilcene Oysteria farms and sells oysters in the Pacific Northwest. The company harvested and sold 7,200 pounds of oysters in August. The companys flexible budget for August appears below: Quilcene Oysteria Flexible Budget For the Month Ended August 31 Actual pounds (q) 7,200 Revenue ($4.20q) $30,240 Expenses: Packing supplies ($0.35q) 2,520 Oyster bed maintenance ($3,300) 3,300 Wages and salaries ($2,000 + $0.35q) 4,520 Shipping ($0.65q) 4,680 Utilities ($1,290) 1,290 Other ($460 + $0.01q) 532 Total expense 16,842 Net operating income $13,398 The actual results for August were as follows: Quilcene Oysteria Income Statement For the Month Ended August 31 Actual pounds 7,200 Revenue $27,200 Expenses: Packing supplies 2,690 Oyster bed maintenance 3,160 Wages and salaries 4,930 Shipping 4,410 Utilities 1,100 Other 1,152 Total expense 17,442 Net operating income $9,758Required:Compute the companys revenue and spending variances for August. The image shows the Grand Canal in China.A number of small boats and larger ships are traveling down a narrow passageway of water.What does the picture show about one of the main points of Legalism?The number of ships suggests that production and transportation were major focuses.The small boats suggest that competition limited trade.The large boats suggest that only the rich could travel.The number of ships suggests that peasants and farmers were able to enjoy more leisure time. Ruth decides to use the method of proportions and similar triangles to find the height of a tree. She measures the length of the tree's shadow and finds it is 12 feet long. Then she holds a 12-inch ruler perpendicular to the ground and finds that it casts a 6-inch shadow. How tall is the tree? a. 2 ft c. 24 ft b. 6 ft d. 144 ft Andrea's boss has been sexually harassing her at work. Which effect is most likely happening? Set up an equation (part + part = whole). Solve the equation to find the value of x. 10 + x + x + 20 = 12 What can we conclude about similarities and differences in short-term and long-term memory based on the way coding occurs in both? Which property of water allows it to moderate the temperature of nearby areas of land by resisting temperature changes? How is this important for living organisms?